Telautograph.



No. 672.63I. Patented Apr. 23, MIL G. s. TIFFANY.

TELAUTOGRAPH.

(Application filed Nov. 22, 1900. J

2 Sheets-Sheet l.

. (No Model.)

m: nonms ['EI'tRS 00.. mow-Luna. WASHINGTON. n. c.

rrnn TATES GEORGE S. TIFFANY, OF NEW YORK, N. Y., ASSIGNOR TO THE GRAYNATIONAL TELAUTOGRAPH COMPANY, OF SAME PLACE.

TELAUTOGRAPH.

SPEGIFIGATION forming part of Letters Patent No. 672,631, dated April23, 1901.

Application filed November 22, 1900. Serial No. 37,342. No model.)

writing-telegraphs of the general class for which patents haveheretofore been granted to Elisha Gray and to myself.

The invention relates especially to the provision of means whereby whenthe sender has finished sending a message an alarm will automatically besounded until the main switch is moved to throw the transmittinginstrument out of circuit.

A full understanding of'the invention can best be given by a detaileddescription in connection with drawings showing a preferred constructionembodying the same, and such a description will now be given inconnection with the accompanying drawings, in which- Figure 1 isabrokenplan view of a transmitting instrument constructed in accordance withthe invention. Figs. 2 and 3 are detail Views, on an enlarged scale,showing one of the pen-arm supports and connections, looking in thedirection of the arrows 2 and 3, respectively, of Fig. 1.- Fig. 4 is anenlarged detail showing the connections of the two pen-arms and pen.Fig. 5 is a detail looking in the direction of the arrow 5 of Fig. 4.Figs. 6 and 7 are detail views, taken on the line 6 7 of Fig. 4, showingthe parts in different positions. Fig. 8 is a diagrammatic view showingthe alarm-circuit connections. Fig. '9 is a view similar to Fig. 8,partly broken away and showing a modification.

Referring to the drawings, A represents the writing-platen on which thepaper rests; B, the hand or arm rest; O, the transmitting pen or pencil,and D and E the two pen-arms. The adjacent ends of the pen-arms areconnected together, and the pencil is connected thereto near its pointby a swivel connection, and the pen-arms are connected to pendrums 10 bymeans of cords 11, passing around the pen-drums, and are supported bymeans of slotted guides 12, all as usual.

The connection between the ends of the penarms is formed so that whenthe pen is in the position of rest a member carried by one arm will bein electrical contact with a member carried by the other arm; but whenthe pen is moved into writing position these two members will be movedout of contact with each other. This result may be secured in anysuitable manner, but, as shown, one of the arms E is provided with anon-conducting sleeve 15 and the arms are secured together by means of astrap 16 of conducting material carried by the other arm D and extendingabout the sleeve 15. The strap 16 is provided with a lug or shoulder 17,in position to be engaged by a yoke 18, carried by the arm E, and whichforms a part of the swivel connection between the arm E and the pen. Thelug 17 is so positioned that it will be engaged by the yoke 18, as shownin Fig. 7, when the pen is in the position of rest or lying on thearm-rest B, as shown in Fig. 1. When the pen is raised forwriting,however,the yoke 18 will be turned away from the lug 17, asshown in Fig. 6, so as to break the electrical connection between them.The strap 16 and yoke 18 are in electrical connection with the brackets20, and this connection is preferably through the penarms D E, a goodelectrical connection between the pen-arms and the brackets beingpreferably secured by means of a pair of spring-rods 21, adapted to bearon either side of the pen-arm.

Referring to Fig. 8, the complete alarm-circuit is as follows: startingfrom a local battery G, by wire a to a contact-plate b of themaster-switch H, contact-spring 0, wire cl, to connecting-springs 21,then through the penarms E and D to the other connecting-springs 21, andthence by wire e through a buzzer I and back to the battery.

When the master-switch is in transmitting position, the contact-spring 0will be in contact with the plate I); but the circuit will be brokenbetween the lug 17 and yoke 18 when the pen is in position for writing.When,

however, the pen is dropped to its position of rest, the lug 17 and yoke18 will be brought into contact-and the alarm-circuit wil-lbe-completed,and-the alarm will consequently sound until the master-switch is movedto throw the transmitting instrument out of circuit, by which movementcontact between the spring. 0 and contact b will be destroyed and thealarm-circuit opened.

It will be understood that the invention is not limited to the exactconstruction or arrangement of the parts or circuit asshown in; thedrawings, but that changes therein may be made within the claims. Forexample,i'n-' stead of running the circuit through the two; pen-arms, itmight be through one of thepenarms, as E, and throughthe pen. Inthis'case the Wire 6 might be in connection with a suitable bar or ribof conducting material, as shown in Fig. 9, with which rib g thepen-handle wouldcon't'act when in its position of rest, the pen-handlein this case being of conducting material.

What I claim is 1. The combination with a telegraphic transmittinginstrument, having a transmittin g-pen, of an alarm -circuit, and meanswhereby break in the alarm-circuit is closed when the transmitting-penis in the position of rest, substantially as described.

2. The combination with a telegraphic transmitting instrument having'atransmitting-pen, of an alarm -circuit, and means whereby saidcircuit isclosed only when the master-switch is in transmitting-positionand thetransmitting-pen in the position of rest, su bsta ntiallyas described.

3. The combination w-it'h a telautographic transmitting instrumenthavinga transmit -tingpen and pen-arms substantially as deting-pen andpen-arms substantially as described, and devices for connecting the endsof the pen-arms and the pen including two contact members which are incontact when the pen is in the position of rest and are not in'contact'when 'the'pen is in the position for writing, and analarm-circuit including said contact members, substantiallyas-described.

6. The combination with a telautograp'hic transmitting instrument havinga transmitting-pen and pen-arms substantially as described; ofdevicesfor connecting the ends of the pen-arms including theswiveledyoke 18 to which the pen is connected and the in-.

sulating-sleeve 15 carried by'one'ot' the penarms, and the straplbcarried =bytheother pen-arm and extending about the sleeve 15, .saidyoke and strap being formed toengage each other when the pen is in thepositiono't rest; and an alarm-circuit including said yoke and strap,substantiallyas-described.

'7. The combination with a telautogra'phic transmitting instrumenthaV-inga transmitting-pen and pen-arms,-of an alarm-circuit includingoneot the pen-arms, anda springcontact 21 hearing on said #pen-armsubst-a-ntially as described. a

8. The combination w itha ipen-arm'of a telautographictransmittinginstrument mounted to be capableof a sliding and swinging movement, ofastationary'spring-contact 21 hearing on the pen-arm, substantially asdescribed.

In testimony whereof I have hereunto set my hand in the presence of twowitnesses. GEORGE S.- TIFFANY. Witnesses:

A. L. KENT, T. F. 'KEHO'E.

